I am checking if anyone happens to know the registration for flight UA 51 (JFK-LAX) on Feb. 4, 2007. If I am not mistaken, it operated as UA 26 from LAX to JFK earlier that morning. Any help will be greatly appreciated!
[Edited 2007-02-06 00:46:22]
[Edited 2007-02-06 00:46:58]